/* Общие стили и переменные */
:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --accent-color: #a78bfa;
    --dark-purple: #1e1b4b;
    --darker-purple: #17143d;
    --text-light: #f9fafb;
    --text-gray: #9ca3af;
    --border-radius: 12px;
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    object-fit: cover;
    border: 2px solid var(--accent-color);
}

.logo h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: var(--text-gray);
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    transition: var(--transition);
    position: relative;
    padding: 5px 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Hero Section */
.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: radial-gradient(circle at 5 50%, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    z-index: 1;
}

.hero-content {
    max-width: 1200px;
    text-align: center;
    position: relative;
    z-index: 2;
}

/* Исправленный красивый прописной шрифт для заголовка */
.main-title {
    font-family: 'Playfair Display', serif;
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 30px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-light);
    position: relative;
    transition: all 0.3s ease;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.main-title::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    z-index: -1;
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.main-title span {
    display: inline-block;
    animation: letterFloat 3s ease-in-out infinite;
}

.main-title span:nth-child(1) { animation-delay: 0s; }
.main-title span:nth-child(2) { animation-delay: 0.1s; }
.main-title span:nth-child(3) { animation-delay: 0.2s; }

@keyframes letterFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.modern {
    color: var(--text-light);
    font-weight: 900;
    letter-spacing: 3px;
}

/* Исправленная надпись BG INFO */
.bg-info {
    color: var(--text-gray);
    text-decoration-line: line-through;
    text-decoration-color: var(--accent-color);
    text-decoration-thickness: 3px;
    text-transform: uppercase;
    letter-spacing: 2px;
    display: inline-block;
    position: relative;
}

.bg-info::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    transform: translateY(-50%);
}

.subtitle {
    font-size: 1.5rem;
    color: var(--text-gray);
    margin-bottom: 60px;
    font-weight: 500;
}

.video-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--accent-color);
}

.hero-video {
    width: 100%;
    height: auto;
    display: block;
}

/* Скачать кнопка */
.download-container {
    margin-top: 40px;
}

.download-btn {
    display: inline-block;
    padding: 16px 50px;
    background: linear-gradient(45deg, #6366f1, #8b5cf6, #a78bfa, #6366f1);
    background-size: 300% 300%;
    color: white;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.2rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.4s ease;
    box-shadow: 0 8px 20px rgba(102, 102, 255, 0.3);
    position: relative;
    overflow: hidden;
    animation: pulse 2s infinite;
    animation-name: gradientShift;
    animation-duration: 4s;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
}

.download-btn::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: rotate(30deg);
    transition: all 0.8s ease;
}

.download-btn:hover::before {
    left: 50%;
    top: 50%;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 25px rgba(102, 102, 255, 0.4);
    background: linear-gradient(45deg, #7c3aed, #a78bfa);
    animation-play-state: paused;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(102, 102, 255, 0.4);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(102, 102, 255, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(102, 102, 255, 0);
    }
}

/* Features Section */
.features {
    padding: 80px 0;
    background: rgba(23, 20, 61, 0.5);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: rgba(30, 27, 75, 0.6);
    border-radius: var(--border-radius);
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-card:hover {
    transform: translateY(-10px);
    background: rgba(30, 27, 75, 0.8);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-light);
}

.feature-card p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

/* Description Section */
.description {
    padding: 80px 0;
}

.description-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.description-text h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.5rem;
    margin-bottom: 30px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-list {
    list-style: none;
    margin: 30px 0;
    font-size: 1.1rem;
    line-height: 1.8;
}

.features-list li {
    margin-bottom: 10px;
    color: var(--text-light);
}

.important-note {
    background: rgba(255, 255, 255, 0.05);
    border-left: 4px solid var(--accent-color);
    padding: 20px;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    margin-top: 30px;
}

.important-note h3 {
    color: var(--accent-color);
    margin-bottom: 10px;
}

.important-note p {
    color: var(--text-gray);
}

.description-image {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.constructor-img {
    max-width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    border: 3px solid var(--accent-color);
    transition: var(--transition);
}

.constructor-img:hover {
    transform: scale(1.02);
}

.widget-img {
    max-width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    border: 3px solid var(--accent-color);
    transition: var(--transition);
}

.widget-img:hover {
    transform: scale(1.02);
}

/* Footer */
.footer {
    background: rgba(15, 20, 48, 0.9);
    padding: 30px 0;
    margin-top: 80px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-copyright {
    color: var(--text-gray);
    font-size: 0.9rem;
    text-align: center;
    width: 100%;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .description-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .description-image {
        margin-bottom: 30px;
    }
    
    .main-title {
        font-size: 3.5rem;
    }
}

@media (max-width: 768px) {
    .main-title {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .nav {
        gap: 15px;
    }
    
    .nav-link {
        font-size: 14px;
    }
    
    .donate-hero h1 {
        font-size: 3rem;
    }
    
    .donate-description {
        font-size: 1.1rem;
        padding: 0 15px;
    }
    
    .donate-info-container {
        grid-template-columns: 1fr;
        padding: 0 15px;
    }
    
    .info-card {
        padding: 30px 20px;
    }
    
    .hero {
        padding: 40px 0;
    }
    
    .features,
    .description,
    .donate-hero,
    .donate-info-section {
        padding: 40px 0;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 2rem;
    }
    
    .logo h1 {
        font-size: 20px;
    }
    
    .logo-img {
        width: 40px;
        height: 40px;
    }
    
    .download-btn {
        padding: 14px 40px;
        font-size: 1rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer {
        padding: 20px 0;
    }
    
    .footer-copyright {
        font-size: 0.85rem;
    }
    
    .donate-hero h1 {
        font-size: 2.5rem;
    }
    
    .donate-description {
        font-size: 1rem;
    }
    
    .donate-hero {
        min-height: 40vh;
        padding: 60px 0;
    }
    
    .info-icon {
        font-size: 2.5rem;
    }
    
    .info-card h2 {
        font-size: 1.3rem;
    }
}

/* Добавленные стили для блока с инструкцией */
.usage-instructions {
    background: rgba(30, 27, 75, 0.6);
    border-radius: var(--border-radius);
    padding: 30px;
    margin-top: 30px;
    border-left: 4px solid var(--accent-color);
}

.usage-instructions h3 {
    font-size: 1.4rem;
    margin-bottom: 20px;
    color: var(--text-light);
    font-weight: 600;
}

.usage-steps {
    list-style-type: none;
    padding-left: 20px;
    counter-reset: step-counter;
    margin-bottom: 25px;
}

.usage-steps li {
    position: relative;
    padding-left: 45px;
    margin-bottom: 15px;
    color: var(--text-light);
    font-size: 1.05rem;
    line-height: 1.6;
}

.usage-steps li::before {
    content: counter(step-counter);
    counter-increment: step-counter;
    position: absolute;
    left: 0;
    top: 0;
    width: 30px;
    height: 30px;
    background: var(--accent-color);
    border-radius: 50%;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.1rem;
}

.donation-cta {
    color: var(--text-gray);
    font-style: italic;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 1.05rem;
}

.donation-cta a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.donation-cta a:hover {
    text-decoration: underline;
}

/* Добавленные стили для QR-кода */
.qr-section {
    padding: 60px 0;
    background: rgba(23, 20, 61, 0.5);
}

.qr-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.qr-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.2rem;
    color: var(--text-light);
    text-align: center;
    margin-bottom: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.qr-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
    justify-content: center;
}

.qr-image {
    flex: 1;
    min-width: 300px;
    display: flex;
    justify-content: center;
}

.qr-code {
    max-width: 100%;
    max-height: 350px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    border: 3px solid var(--accent-color);
    transition: var(--transition);
}

.qr-code:hover {
    transform: scale(1.05);
}

.qr-text {
    flex: 1;
    min-width: 300px;
    color: var(--text-gray);
    line-height: 1.7;
    font-size: 1.1rem;
}

.qr-note {
    color: var(--text-light);
    font-weight: 500;
    margin-top: 15px;
    font-style: italic;
}

/* QR-код стили */
.qr-section {
    padding: 60px 0;
    background: rgba(15, 20, 48, 0.9);
}

.qr-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.qr-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.2rem;
    color: var(--text-light);
    text-align: center;
    margin-bottom: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.qr-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
    justify-content: center;
}

.qr-image {
    flex: 1;
    min-width: 300px;
    display: flex;
    justify-content: center;
}

.qr-code {
    max-width: 100%;
    max-height: 350px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    border: 3px solid var(--accent-color);
    transition: var(--transition);
}

.qr-code:hover {
    transform: scale(1.05);
}

.qr-text {
    flex: 1;
    min-width: 300px;
    color: var(--text-gray);
    line-height: 1.7;
    font-size: 1.1rem;
}

.qr-note {
    color: var(--text-light);
    font-weight: 500;
    margin-top: 15px;
    font-style: italic;
}